Biofuel Blend Dispenser Labeling Requirement

Pumps dispensing ethanol or biodiesel blends must have a label that specifies the percentage of ethanol or biodiesel present in the fuel. Ethanol pumps distributing between 1% and 10% must include a label stating that the fuel "contains up to 10% ethanol" and those distributing blends greater than 10% must be labeled with the capital letter E, followed by the numerical value volume of ethanol and the word "ethanol." Pumps dispensing biodiesel blends of 5% (B5) or less must include a label stating that the fuel "may contain up to five percent biodiesel" and those distributing blends greater than 5% must be labeled with the capital letter B, followed by the numerical value volume of biodiesel and the words "biodiesel" or "biodiesel blend." (Reference Revised Code of Washington 19.112.020, and Washington Administrative Code 16-662-115)